Vacuum dinner-pail.



B. J. C. BRUEGGER VACUUM DiNNEH PAIL. APPLICATION mzu mmzs, 1916. RENEWED MAY l2. 19m

1 1,231,562. Patented My 3, 1917.

I I aw L If /Z INVENTOR v W W bx ATTORNEY Be it known that I, BYRON J. Bnonccnn,

al-citiz en ot the 'llnited States, residing at Lad smith,inthe county of Rusk and State is nal fi ieinv n d certain w a mprovements in Vacuum Dinner- Pails, of which the following is a specification.

This invention relates to an improved dinner pail and the principal object of the 1nvention is to provide a dinner pail so constructed that a vacuum chamber'may be pro;

vided in one portion thereof thus permitting certain articles placed in different parts of the dinner pail to be maintained at difierent temperatures t 1 Another object of the invention is to so construct this dinner pail that the trays placed therein may each] support. the one;

above it, each tray being provided at its upper edge with an inner'flange serving as strengthening means for the tray itself and as supporting means for the tray above it and to further so constructthe bottom tray above the vacuum' chamber that the lower portion of this tray will form a portion oi the vacuum wall of the vacuum chamber.

Another object of the invention is to so construct these trays that they will be easy to clean, the inwardly extending flanges being so constructed that liquid will not be retained in the trays by the flanges.

Another object of the invention is to so construct this'dinner pail that it will be light but. at the same tlme of a strong and durable construction thus preventing breakthe improved portion or receptable having cars 11 with- .which the handle or bail 12 is connected, the

ears ll'extending1 in spaced relation to the receptacle 10 so t at the side walls 13 of the cover 14 may fit tightly upon the receptacle without the ears 11 interfering with the placing of the cover upon the receptacle. This cover-is provided with a neck 15 extending above the cover and serving as a carrier for a cup 16 which fits upon the neck as clearly shown in Fig. 1. This receptacle is provided with an inner wall 17 which has its STATES PATENT oFruoE. i i .rydiimuncenaior nanvsiurrri, Wisconsin v Patented:l 3,"1917.

'appucatfcn-m'ed seniiar aa,ieia-seriai Ho. 74,937. RenewedItIay 12,1917. semi no. men.

upper edge portion soldered or fotherwise tightly connected with the, outer wall of the receptacle and from this point extends in spaced relation to the-outer wall thus provid ng an air-tight vacuum chamber 18 which is'positioned around andbeneath the lower compartment 19. Studs orpins' 20 extend from the outer wall and bottom of the receptacle 10 and engage the inner wall 17 to support this inner wall and also brace the outer wall against denting. A supportlng ring 21 is secured to this inner wall within the compartment 19 and serves to support the tray 22 which fits in the inner portion of the compartment 19 and has its upper ed e provided with an inwardly extending ange 23. It should be noted that these flanges 21 and 23 are so formed that liquid will not be held within the tray or "compartment when the pail is washed and therefore danger of rust is prevented.

The articles which are to be retained either hot or cold are placed in the compartment 19 and tray 22 and the tray 24 15 then ut in place. This tray 24 is provided with a false bottom 25 providing an air-tight vacuum chamber 26 so shaped that it will fit tightly onto the seat 27 formed by the upper portion of the inner wall 17. Therefore when the tray 24] is in place, the compartment 19 will be entirely inclosed by a vacuum wall thus retaining the contents of the compartment 19 and tray 22' at a predetermined temperature. A second tray 28 fits into the upper compartment 29 of the receptacle 10 and rests upon the tray 24, the tray 24 being provided with a flange 30 similar to the flange 23 to support the tray 28 and also brace the edge portion of the tray 24 and the tray 28 being provided with a flange 31 similar to the flange 30 and serving to brace the edge ortion of the tray 28. It is of course, obvious that if desired the depthof the tray 24 could be changed and a greater number of trays placed above the same, each tray being formed as is tray 28. Articles which are to remain at their normal temperature will 1 beplaced iin the trays 24 and 28 and as the compartment 19 is inclosed by a vacuum, the heat or coldness of the articles placed therein willnotafiect the temperature of the compartment 29 and therefore will not affect the articles placed in the trays 24 and 28.

,There has thus been provided a pail which is so constructed that it will be veryserviceable for carrying lunches and pro- -'viding hot or cold drinks with the lunch or for keeping other articles warm.

What is claimed is 1. A vacuum dinner pail including an elongated receptacle, :1 tray mounted in the receptacle andvadapted to be normally retained in spaced relation to the bottom and inner peripherythereof, the upper margin of said tray being turned outwardly into snug engagement with the innerperiphery ,of the receptacle to" provide an air tight compartment around said tray, a second tray mounted on the first mentioned tray and being completely housed within the receptacle, and a closure for the receptacle.

2. A vacuum dinner pail" including a rece'ptacle. a plurality of detachable trays concentrically arranged within the ruccptarlv.

smaller tray therein In testimony whereof I aflix my signa- 30 ture in presence of two witnesses. v

BYROX .T. (3. BRUHHHER.

\Vitnesses: i

H. R. T. Ross, C. M. BISCHEL. 

